Gallup.co.kr asked 4203 Korean people aged 13-59 nationwide in July, September, and November to find (among other stuff) the most popular idol in South Korea.
The report is here (gallup.co.kr link), and in the table below the results:
Search
Database
Facebook Page
Idols
All K-Pop Idols | Female K-Pop Idols | Male K-Pop Idols | Foreign K-Pop Idols|K-Pop Idols from China| K-Pop Idols from Japan | K-Pop Idols from Thailand
Upcoming K-Pop Idol Birthdays
K-Pop Idol Instagram Accounts
K-Pop Idols by Year Born
City born: Seoul, Busan
Groups
K-Pop Groups Instagram AccountsK-Pop Girlgroups | K-Pop Boybands
Upcoming K-Pop Group Anniversaries
Music Videos
All K-Pop Music Videos | Girlgroup | BoybandK-Pop MV who is who
K-Pop Music Videos by Year Released
Top Posts & Pages
Links
Kpopalypse
A blog by kpopalypse about k-pop related stuff.
AsianJunkie
Quality K-Pop journalism and satire site.
r/kpop
Great source of K-Pop news and stuff
MV_DATABASE
Comprehensive K-Pop MV Playlists
Selca Kastden
Female K-Pop Idols Instagram and Twitter aggregator
Daisuki's K-Pop (former Aoimirai - K-pop)
K-Pop MV Database with YouTube views and various stats
A blog by kpopalypse about k-pop related stuff.
AsianJunkie
Quality K-Pop journalism and satire site.
r/kpop
Great source of K-Pop news and stuff
MV_DATABASE
Comprehensive K-Pop MV Playlists
Selca Kastden
Female K-Pop Idols Instagram and Twitter aggregator
Daisuki's K-Pop (former Aoimirai - K-pop)
K-Pop MV Database with YouTube views and various stats